发明授权
- 专利标题： Transmission signal generation apparatus, transmission signal generation method, reception signal apparatus, and reception signal method
- 专利标题（中）： 发送信号生成装置，发送信号生成方法，接收信号装置以及接收信号方法
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申请号： US14703938申请日： 2015-05-05
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公开(公告)号： US09374209B2公开(公告)日： 2016-06-21
- 发明人: Yutaka Murakami , Kiyotaka Kobayashi , Masayuki Orihashi
- 申请人： Wi-Fi One, LLC
- 申请人地址： US TX Plano
- 专利权人： Wi-Fi One, LLC
- 当前专利权人： Wi-Fi One, LLC
- 当前专利权人地址： US TX Plano
- 代理机构： Nixon & Vanderhye P.C.
- 优先权： JP2005-243494 20050824; JP2006-228337 20060824
- 主分类号： H04L27/00
- IPC分类号： H04L27/00 ; H04L5/00 ; H04L27/26
摘要：
Multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) communication is provided which allows high accuracy estimation of frequency offset, high accuracy estimation of a transmission path fluctuation and high accuracy synchronization/signal detection. Pilot symbol mapping is provided for forming pilot carriers by assigning orthogonal sequences to corresponding subcarriers among OFDM signals which are transmitted at the same time from respective antennas in the time domain. Even when pilot symbols are multiplexed among a plurality of channels (antennas), this allows frequency offset/phase noise to be estimated with high accuracy.
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